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ASSAF, GAD (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
I n a recent paper Ikebe & Shimo (1972) [I & S] reported results of their study on the estimation of vertical diffusivity from thoron profiles. They found that the apparent diffusivity from thoron profiles was 50 % larger than the apparent eddy viscosity derived from the wind profiles. The discussion in their paper concentrated on this discrepancy. I & S examine two possible explanations: ( 1 ) the departure from atmospheric stability, and (2) the error in their measurements. I n their paper they did not mention that Israel (1966) found a seven fold difference between the apparent diffusivity from thoron and the eddy viscosity. It appears from that paper that something very essential is missing from the discussion of I & S.DOI: 10.1111/j.2153-3490.1972.tb01575.x
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    • Assaf, G. 1969. Emanated products a8 a probe of atmospheric transport. Tellus 21, 820.
    • Assaf, G. 1971. Comments on paper by W. E. Bradley and J. E. Pearson, “Aircraft measurements of the vertical distribution of radon in the lower atmosphere resulting from their washout by rain”. J . Geophys. Res. 7 6 , 2897
    • Beran, M. & Assaf, G. 1970. Use of isotopic decay rates in turbulent dispersion studies. J . Geophye. Res. 75, 27, 5279.
    • Huss, A., Segal, M. & Assaf, 0.1970. Model investigation of time dependent distribution of radon. J . Geophys. Res. 7 5 , 3020.
    • Ikebe, Y .& Shimo, M. 1972. Estimation of the vertical turbulent diffusivity from thoron profiles. Tellus 24, 29.
    • Israel, G. W. 1966. Meterological influences on the thoron content of the atmosphere. Tellus 18, 633.
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